Seeing how I've made this a bit of a tradition I'll rank the new animals from best to least inclusion-wise.
1- Butterflies: even though they aren't flying birds, I'm still very glad they've added them, as butterfly houses are a staple of many zoos. And the fact that it's five whole species just makes it extra special!
2- Nine-banded armadillo: I can't hide my bias here, as xenarthrans are my favorite mammal clade, and the nine-banded armadillo is an excellent choice due to its wide ecological and geographic range. The amount of species it can be housed with is almost limitless!
3- Caracal: Finally, another small cat (well, relatively speaking). Although the serval would have been nice, I think this cat also has the benefits of having a wider distribution, being more handy when building a Middle Eastern themed area, for example. Fingers crossed that they can bring more small cats later on
4- Striped hyena: even though it was unexpected (like most animals on this pack, to be honest), much like the caracal, this hyena's wide distribution makes it quite versatile, and it's always cool to have two different types of hyena.
5- Emu: The third ratite to be added to the game, the emu is definitely a welcome addition, especially as it can really help flesh out Australian paddocks; in my opinion, they're a better fit to mix with red kangaroos in expansive walk-through enclosures than koalas are.
6- Maned wolf: this highly requested canid may look low on my list, as we do have plenty of dogs, but make no mistake; I'm very happy this South American oddity made it in, further enriching its once neglected continent. I especially hope they can be housed with anteaters and maybe even llamas, but I guess we'll have to wait and see.
7- Red-necked wallaby: though next-to last on the list, I'm actually quite happy at the inclusion of the red-necked wallaby, which gives the Oceanian roster a nice little boost. Sure, maybe I would have preferred the yellow-footed rock wallaby, but this little guy is fine in my book, as it's a famous staple in zoos worldwide.
8- Blue wildebeest: here my goodwill… kind of peeters off. Really now; do we need two types of wildebeest? Sure, the blue one is more common, and many say it would have been a better choice than the black gnu, but there are SO many other, more unique African antelopes that could have been chosen instead; the eland, gerenuk, impala, blesbok and topi, just to name a few. I don't outright hate this one, don't get me wrong, but… it could have been better in my opinion.